Событие открытия модального окна Fancybox

function detect(){ 
console.log('Fancy Box Открылся'); 
} 
$(".fancybox") 
    .attr('rel', 'gallery') 
    .fancybox({ 
    		afterShow: detect, 
        helpers: { 
            thumbs: { 
                width  : 40, 
                height : 40, 
                source  : function(current) { 
                    return $(current.element).data('thumbnail'); 
                } 
            } 
        } 
    });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
<script src="http://fancyapps.com/fancybox/source/helpers/jquery.fancybox-thumbs.js"></script> 
<link href="http://fancyapps.com/fancybox/source/helpers/jquery.fancybox-thumbs.css" rel="stylesheet"/> 
<link href="http://fancyapps.com/fancybox/source/jquery.fancybox.css" rel="stylesheet"/> 
<script src="http://fancyapps.com/fancybox/source/jquery.fancybox.js"></script> 
 
<a class="fancybox" data-thumbnail="http://fancyapps.com/fancybox/demo/1_s.jpg" href="http://fancyapps.com/fancybox/demo/1_b.jpg">Open #1</a> 
 
<br /> 
 
<a class="fancybox" data-thumbnail="http://fancyapps.com/fancybox/demo/2_s.jpg" href="http://fancyapps.com/fancybox/demo/2_b.jpg">Open #2</a>